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Table representation of search results timeline featuring number of search results per year.
| Year | Number of Results |
|---|---|
| 1971 | 3 |
| 1972 | 3 |
| 1973 | 4 |
| 1974 | 3 |
| 1975 | 3 |
| 1976 | 14 |
| 1977 | 7 |
| 1978 | 17 |
| 1979 | 22 |
| 1980 | 17 |
| 1981 | 17 |
| 1982 | 9 |
| 1983 | 14 |
| 1984 | 17 |
| 1985 | 12 |
| 1986 | 20 |
| 1987 | 34 |
| 1988 | 30 |
| 1989 | 31 |
| 1990 | 30 |
| 1991 | 34 |
| 1992 | 47 |
| 1993 | 41 |
| 1994 | 49 |
| 1995 | 55 |
| 1996 | 55 |
| 1997 | 57 |
| 1998 | 58 |
| 1999 | 57 |
| 2000 | 90 |
| 2001 | 86 |
| 2002 | 81 |
| 2003 | 104 |
| 2004 | 101 |
| 2005 | 125 |
| 2006 | 144 |
| 2007 | 173 |
| 2008 | 215 |
| 2009 | 200 |
| 2010 | 250 |
| 2011 | 290 |
| 2012 | 292 |
| 2013 | 305 |
| 2014 | 373 |
| 2015 | 376 |
| 2016 | 350 |
| 2017 | 368 |
| 2018 | 366 |
| 2019 | 373 |
| 2020 | 419 |
| 2021 | 534 |
| 2022 | 471 |
| 2023 | 452 |
| 2024 | 327 |